Dice Roller

Standard RPG notation: NdS for N dice of S sides, an optional leading count where d20 means 1d20, and an optional modifier like +3 or -1. Examples include 2d6+3, d100 and 4d8-1. Spaces and an uppercase D are tolerated.

Both the dice count and the number of sides are capped at 1000, so 1000d1000 is the ceiling. That guard stops a typo from asking for millions of dice. Anything past the cap, or notation like d0 or 2d, is rejected with a hint.

Rolls use your browser's built-in random number generator, which is well suited for games and casual use. It is not designed for cryptography or regulated gambling. Each die is rolled independently, so results are not weighted or fixed.

Yes. Set any count up to 1000, such as 8d6 or 10d10, and the tool rolls each die separately, shows every face, and sums them with your modifier into one total.

A trailing +N or -N is added to the sum of the dice, not to each die. So 2d6+3 rolls two six-sided dice, adds them, then adds 3, giving a total between 5 and 15. A negative modifier like 4d8-1 subtracts from the sum.

The number after the d is how many sides the die has. A d20 has 20 faces and is the core die in many role playing games, while d100 (percentile) returns 1 to 100. All of these are available as one-tap quick picks.

Yes. The last ten rolls are listed under Recent rolls with their notation, the individual dice, and the total. The history lives only in the current page and clears when you reload or press Clear.

The parser needs a valid NdS pattern with a count and sides of at least 1. Entries like d0, 2d, abc or a count above 1000 do not match and show the hint to enter notation like 2d6+3, d20 or 4d8-1.

No. Every roll happens locally in your browser, so the tool is private and works even when you are offline.